CN211543666U

CN211543666U - Handrail mechanism of handcart

Info

Publication number: CN211543666U
Application number: CN201921564073.8U
Authority: CN
Inventors: 钟灶新
Original assignee: Dongguan Kingstar Children Products Co ltd
Current assignee: Dongguan Mingxin Technology Service Co ltd
Priority date: 2019-09-19
Filing date: 2019-09-19
Publication date: 2020-09-22
Anticipated expiration: 2029-09-19

Abstract

The utility model discloses a handrail mechanism of a handcart, which comprises a frame, wherein the frame comprises a support rod; the handrail mechanism comprises a sliding piece and a handrail seat, and the sliding piece is connected with the supporting rod in a sliding way; the sliding part is provided with a rotating shaft; the armrest seat is rotationally connected with the rotating shaft; the frame is also provided with seat cloth which is fixedly connected with the armrest seat. The armrest mechanism can drive the sliding part to slide on the supporting rod and drive the seat cloth to fold/unfold when the frame is folded/unfolded, the sliding part slides to drive the armrest seat to slide, and the seat cloth can drive the armrest seat to rotate around the rotating shaft of the sliding part when the armrest seat slides to a preset distance, so that the armrest seat can be folded/unfolded along with the frame. The handrail mechanism does not need to additionally operate the handrail seat, and the folding/unfolding of the frame automatically drives the handrail seat to fold/unfold, thereby simplifying the operation flow of the integral folding/unfolding of the handcart and facilitating the operation of consumers.

Description

Handrail mechanism of handcart

Technical Field

The utility model relates to a handcart field especially relates to a handrail mechanism of handcart.

Background

The handcart occupies a large space, and a user is difficult to place the handcart in positions such as an automobile trunk when going out, and the handcart also occupies a room space when being placed in a house. The foldable handcart now popularizes, can fold up when need not to use in order to reduce occupation space, also conveniently carries when going out. Handrails or guard rail mechanisms are typically provided on the front of the child seating position of the stroller to protect the child and prevent the child from falling out of the stroller when the child is erratically positioned on the stroller. In a conventional foldable stroller, when the stroller is folded/unfolded, the armrest mechanism cannot be automatically folded/unfolded along with the folding/unfolding of the frame, and still needs to be manually folded/unfolded, so that the overall folding/unfolding steps of the stroller are complicated, and the operation is inconvenient.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a handrail mechanism of handcart solves the problem that the handcart handrail needs solitary step to fold up/expand.

To achieve the purpose, the utility model adopts the following technical proposal:

a handrail mechanism of a trolley, the trolley comprising a frame, the frame comprising a support bar; the armrest mechanism comprises a sliding part and an armrest seat, and the sliding part is connected with the supporting rod in a sliding manner; the sliding part is provided with a rotating shaft; the armrest seat is rotationally connected with the rotating shaft; the frame is also provided with seat cloth which is fixedly connected with the armrest seat.

Optionally, the seat cloth is provided with a handrail seat limiting device for limiting the handrail seat, and a part of the handrail seat is sleeved in the handrail seat limiting device.

Optionally, the armrest seat is provided with a quick release device, and the armrest seat comprises an upper armrest seat and an armrest base; one end of the handrail base, which faces the handrail upper seat, penetrates through the handrail seat limiting device, and is detachably connected with the handrail upper seat through the quick release device.

Optionally, the armrest limiting device is a cloth cover arranged on one side of the seat cloth, and a base fixing device used for fixing the armrest base is arranged in the cloth cover.

Optionally, the base fixing device is a hook fixedly arranged in the cloth cover, a buckle is fixedly arranged at one end of the handrail base facing the handrail upper seat, and the buckle is connected with the hook in a clamping manner.

Optionally, the quick release device comprises a bean bouncing groove and a bean bouncing groove, and a bean bouncing buckle connected with the bean bouncing groove in a clamping manner is arranged in the bean bouncing groove; the bouncing beans are arranged at one end, facing the handrail base, of the handrail upper seat, and the bouncing bean groove is formed in one surface, facing the handrail upper seat, of the handrail base;

the handrail upper seat is inserted into the marble groove towards one end of the handrail base, and the marble buckle are connected in a clamping mode.

Optionally, the quick release device further includes a quick release button for separating the snap bean from the snap bean buckle, a button hole communicating with the snap bean groove is further formed in one end of the armrest base facing the armrest upper seat, and the quick release button is arranged in the button hole; one end of the quick-release button extends into the bean popping groove and is abutted to the bean popping groove, and the other end of the quick-release button extends out of the button hole.

Optionally, the armrest base is an L-shaped armrest base, and the armrest upper seat is a U-shaped armrest upper seat; the tail end of the U-shaped armrest upper seat is detachably connected with the L-shaped armrest base respectively;

the U-shaped handrail upper seat comprises a U-shaped handrail strip and two I-shaped handrail connecting seats, two tail ends of the U-shaped handrail strip are fixedly connected with the I-shaped handrail connecting seats through rivets respectively, and one end, far away from the U-shaped handrail strip, of each I-shaped handrail connecting seat is detachably connected with the corresponding L-shaped handrail base.

Optionally, an armrest rotating hole is formed in one end, away from the U-shaped armrest upper seat, of the L-shaped armrest base, and the rotating shaft is inserted into the armrest rotating hole.

Optionally, the sliding part is provided with a supporting rod hole for the supporting rod to pass through, and the sliding part is slidably sleeved on the supporting rod;

the frame comprises two support rods, and each support rod is sleeved with one sliding piece; the two handrail bases correspond to the two sliding pieces one by one, and each handrail base is rotatably connected with the corresponding sliding piece.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model provides a handrail mechanism of handcart, when the frame is folded up/is expanded, the frame drives the slider and slides on the bracing piece and drive the seat cloth and fold up/expand, and the slider slides and then drives the handrail seat and slide, and when the handrail seat slides to the predetermined distance, the seat cloth is folded up/is expanded and to drive the handrail seat and rotate round the pivot of slider to make the handrail seat fold up/expand along with the frame is folded up/is expanded and is folded up/is expanded. The handrail mechanism does not need to additionally operate the handrail seat, and the folding/unfolding of the frame automatically drives the handrail seat to fold/unfold, thereby simplifying the operation flow of the integral folding/unfolding of the handcart and facilitating the operation of consumers.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.

The structure, ratio, size and the like shown in the drawings of the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention does not have the substantial significance in the technology, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy which can be produced by the present invention and the achievable purpose.

Fig. 1 is a schematic structural diagram of an armrest mechanism according to an embodiment of the present invention.

Fig. 2 is a schematic view of the cart according to the embodiment of the present invention in a fully folded state.

Fig. 3 is a schematic view of the cart according to the embodiment of the present invention in a half-folded state.

Fig. 4 is another schematic structural diagram of the armrest mechanism according to the embodiment of the present invention.

Fig. 5 is a schematic structural view of a cloth cover of a seat cloth provided by an embodiment of the present invention.

Fig. 6 is a schematic structural view of an armrest base according to an embodiment of the present invention.

Fig. 7 is a schematic structural view of an armrest seat according to an embodiment of the present invention.

Fig. 8 is a schematic structural view of a joint between the upper seat of the armrest and the armrest base according to an embodiment of the present invention.

Fig. 9 is a schematic structural diagram of a cart according to an embodiment of the present invention.

Illustration of the drawings: 1. a support assembly; 11. a support bar; 21. a slider; 22. a rotating shaft; 3. a handrail seat; 31. an armrest upper seat; 311. a shaped armrest connecting seat; 312. a U-shaped handrail strip; 32. a handrail base; 321. buckling; 322. a handrail rotation hole; 41. seat cloth; 42. cloth sheathing; 43. a hook; 5. a quick release device; 51. popping the beans; 52. bean popping grooves; 53. a quick release button; 61. a forefoot assembly; 62. a back foot assembly; 63. a seat assembly; 64. a lower handle assembly 64; 65. a sail bow assembly; 66. an upper handle assembly.

Detailed Description

In order to make the objects, features and advantages of the present invention more obvious and understandable, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the embodiments described below are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. It should be noted that when one component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

Referring to fig. 1-3, the present invention provides a handrail mechanism of a cart, the cart includes a frame, the frame includes a support rod 11, the handrail mechanism includes a sliding member 21 and a handrail seat 3, the sliding member 21 is slidably connected to the support rod 11, and a rotation shaft 22 is disposed on the sliding member 21. The armrest seat 3 is rotatably connected with the rotating shaft 22. The frame is also provided with a seat cloth 41, and the seat cloth 41 is fixedly connected with the armrest seat 3.

The armrest base 3 can rotate around the rotating shaft 22 with the rotating shaft 22 as a rotation point. When the frame is folded/unfolded, the sliding member 21 is driven to slide on the supporting rod 11 and the seat cloth 41 is driven to fold/unfold, the sliding member 21 slides and further drives the armrest seat 3 to slide, when the sliding member 21 slides to a certain distance, the seat cloth 41 is folded/unfolded and drives the armrest seat 3 to rotate around the rotating shaft 22, so that the armrest seat 3 is folded/unfolded along with the frame folding/unfolding.

Specifically, the sliding member 21 is provided with a supporting rod hole for the supporting rod 11 to pass through, and the sliding member 21 is slidably sleeved on the supporting rod 11.

Referring to fig. 4, a seat cloth 41 is fixedly provided with a seat limiting device for limiting the seat 3, and a part of the seat 3 is sleeved in the seat limiting device. In the embodiment, the armrest limiting device is specifically a cloth cover 42, that is, a part of the armrest seat 3 is sleeved in the cloth cover 42. It should be understood that the seat stop device is not limited to the cloth cover 42, and other structures capable of achieving the function of limiting the position of the seat 3 are also within the scope of the present patent.

Specifically, the armrest seat 3 includes two armrest upper seats 31 and two armrest bases 32. The two ends of the handrail upper seat 31 are detachably connected with a handrail base 32 through a quick release device 5 respectively. Two sides of the seat cloth 41 are respectively provided with a cloth cover 42, and the two cloth covers 42 correspond to the two handrail bases 32 one by one. One end of the handrail base 32 facing the handrail upper seat 31 passes through the cloth cover 42 and is detachably connected with the handrail upper seat 31.

The frame comprises two support rods 11, a sliding part 21 is sleeved on each support rod 11, the two handrail bases 32 correspond to the two sliding parts 21 one by one, and each handrail base 32 is rotatably connected with the rotating shaft 22 of the corresponding sliding part 21.

The cloth cover 42 can be fast sleeved on the armrest seat 3 through the design of the quick release device 5. By the design of the two sliding parts 21, the sliding and the rotation of the handrail mechanism are more stable.

In this embodiment, the armrest base 32 is an L-shaped armrest base, and the armrest upper seat 31 is a U-shaped armrest upper seat. The tail ends of the upper seats of the U-shaped handrails are respectively detachably connected with an L-shaped handrail base. The handrail rotating hole 322 is formed in one end, away from the U-shaped handrail upper seat, of the L-shaped handrail base, and the rotating shaft 22 is inserted into the handrail rotating hole 322. It is understood that the L-shape and the U-shape are preferred shapes of the armrest base 32 and the armrest upper base 31, respectively, and are not limited thereto, and other shapes capable of achieving the functions of the present invention are within the protection scope of the present patent.

Specifically, the U-shaped armrest upper seat includes a U-shaped armrest strip 312 and two one-shaped armrest connecting seats 311, two ends of the U-shaped armrest strip 312 are respectively fixedly connected to one-shaped armrest connecting seat 311 through rivets, and one end of each one-shaped armrest connecting seat 311 away from the U-shaped armrest strip 312 is detachably connected to the corresponding L-shaped armrest base 32.

Referring to fig. 5-6, a base fixing device for fixing the armrest base 32 is provided in the cloth cover 42. In the embodiment, the base fixing device is specifically a hook 43 fixedly arranged in the cloth cover 42, and a buckle 321 is fixedly arranged at one end of the armrest base 32 facing the armrest upper seat 31, and the buckle 321 is engaged with the hook 43. The design of the buckle 321 and the hook 43 makes the connection between the cloth cover 42 and the armrest base 32 more firm. It is understood that the base fixing device is not limited to the hook 43, and other structures capable of fixing the armrest base 32 are also within the scope of the present invention.

Specifically, the hook 43 is a plastic sheet, and one end of the plastic sheet is fixed inside the cloth cover 42. The buckle 321 is a U-shaped member, two ends of the U-shaped member are both fixed on the handle base 32, and a gap through which an end of the plastic sheet, which is not fixed on the inner side of the cloth cover 42, passes is formed between the U-shaped member and the handle base 32. Specifically, the U-shaped member and the armrest base 32 are preferably integrally formed, but may be non-integrally formed and fixedly connected by a member such as a bolt.

Referring to fig. 7-8, the quick release device 5 includes a spring bean 51 and a spring bean groove 52, and a spring bean buckle connected with the spring bean 51 is disposed in the spring bean groove 52. The marble 51 is provided at one end of the armrest upper seat 31 facing the armrest base 32, and the marble groove 52 is opened at one surface of the armrest base 32 facing the armrest upper seat 31. One end of the handrail upper seat 31 facing the handrail base 32 is inserted into the marble groove 52, and the marble 51 is connected with the marble buckle in a snap fit manner. It should be understood that the structure of the quick release device 5 is not limited to the cooperation of the spring bean 51 and the spring bean groove 52, and other structures capable of realizing the detachable connection should be within the scope of the present patent.

The quick release device 5 further comprises a quick release button 53 for separating the snap bean 51 from the snap bean buckle, a button hole communicated with the snap bean groove 52 is further formed in one end of the handrail base 32 facing the handrail upper seat 31, and the quick release button 53 is arranged in the button hole. One end of the quick release button 53 extends into the marble groove 52 to abut against the marble 51, and the other end extends out of the button hole.

When the spring bean 51 is in snap-fit connection with the spring bean buckle, the quick release button 53 is pressed, and the quick release button 53 presses the spring bean 51 to deform the spring bean 51 so as to disengage the connection with the spring bean buckle.

Referring to fig. 9, the frame of the stroller of the present embodiment specifically includes a support assembly 1, a rear foot assembly 62, a front foot assembly 61, a seat assembly 63, a lower handle assembly 64, a sail bow assembly 65, and an upper handle assembly 66.

The front foot assembly 61 is hinged to the lower handle assembly 64, the seat assembly 63 and the rear foot assembly 62, respectively. The support assembly 1 is hinged to the heel assembly 62, the sail bow assembly 65 is hinged to the lower handle assembly 64, and the upper handle assembly 66 is hinged to the support assembly 1. The seat cloth 41 is sleeved on the lower handle assembly 64, and the support assembly 1 comprises two support rods 11.

The frame can be folded/unfolded through the hinged relation among the components.

The utility model provides a handrail mechanism of handcart, including handrail seat 3, handrail seat 3 slides and rotates with the frame through slider 21 and is connected, handrail seat 3 still with seat cloth 41 fixed connection for the frame can drive handrail seat 3 and fold up/expand when folding up/expand, need not additionally to operate handrail seat 3. The design of the handrail mechanism simplifies the operation process of the integral folding/unfolding of the handcart, and is convenient for the operation of consumers.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A hand rest mechanism for a hand truck, the hand truck comprising a frame, wherein the frame comprises a support bar; the armrest mechanism comprises a sliding part and an armrest seat, and the sliding part is connected with the supporting rod in a sliding manner; the sliding part is provided with a rotating shaft; the armrest seat is rotationally connected with the rotating shaft; the frame is also provided with seat cloth which is fixedly connected with the armrest seat.

2. A handrail mechanism of a trolley according to claim 1, wherein the seat cloth is provided with a handrail seat position limiting means for limiting a handrail seat, a part of the handrail seat being fitted in the handrail seat position limiting means.

3. A handrail mechanism of a trolley according to claim 2, wherein the handrail seat is provided with a quick release means, the handrail seat comprising an upper handrail seat and a base handrail; one end of the handrail base, which faces the handrail upper seat, penetrates through the handrail seat limiting device, and is detachably connected with the handrail upper seat through the quick release device.

4. A hand cart armrest mechanism as claimed in claim 3, wherein said armrest seat position-limiting means is a cloth cover provided on one side of said seat cloth, and a base fixing means for fixing said armrest base is provided in said cloth cover.

5. A hand truck according to claim 4, wherein the base securing means is a hook fixedly disposed within the fabric cover, and a catch is fixedly disposed on an end of the hand truck base facing the upper seat, the catch engaging the hook.

6. The armrest mechanism of a trolley according to claim 3, wherein the quick release device comprises a snap bean and a snap bean groove, and a snap bean buckle connected with the snap bean in the snap bean groove is arranged in the snap bean groove; the bouncing beans are arranged at one end, facing the handrail base, of the handrail upper seat, and the bouncing bean groove is formed in one surface, facing the handrail upper seat, of the handrail base;

7. The armrest mechanism of a trolley according to claim 6, wherein the quick release device further comprises a quick release button for releasing the snap-lock from the snap-lock, a button hole communicating with the snap-lock groove is further opened at one end of the armrest base facing the armrest upper seat, and the quick release button is disposed in the button hole; one end of the quick-release button extends into the bean popping groove and is abutted to the bean popping groove, and the other end of the quick-release button extends out of the button hole.

8. A hand truck armrest mechanism as claimed in claim 3, wherein said armrest base is an L-shaped armrest base and said upper armrest seat is a U-shaped upper armrest seat; the two tail ends of the U-shaped armrest upper seat are respectively detachably connected with the L-shaped armrest base;

9. A hand truck according to claim 8, wherein an end of said L-shaped arm rest base remote from said U-shaped arm rest upper seat is formed with an arm rest pivot hole into which said pivot shaft is inserted.

10. The armrest mechanism of claim 3, wherein the sliding member defines a support rod hole for the support rod to pass through, and the sliding member is slidably disposed on the support rod;